The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 2021
Filed:
Apr. 25, 2017
Sumitomo Electric Hardmetal Corp., Itami, JP;
Hideaki Kanaoka, Sorachi-gun, JP;
Shinya Imamura, Sorachi-gun, JP;
Anongsack Paseuth, Sorachi-gun, JP;
Satoshi Ono, Sorachi-gun, JP;
Kouhei Yoshimura, Sorachi-gun, JP;
Sumitomo Electric Hardmetal Corp., Itami, JP;
Abstract
A surface-coated cutting tool having a rake face and a flank face includes a base material and a coating formed on the base material. The base material is a cemented carbide or a cermet. The coating includes an aluminum oxide layer containing a plurality of aluminum oxide crystal grains. The aluminum oxide layer includes: a first region made up of a region A on the rake face and a region B on the flank face; a second region on the rake face except for the region A; and a third region on the flank face except for the region B. The aluminum oxide layer satisfies a relation: b−a>0.5, where a is an average value of TC(110) in the first region in texture coefficient TC(hkl), and b is an average value of TC(110) in the second or third region in texture coefficient TC(hkl).